What’s Vulnerable › Vulnerabilities

CVE-2013-1981

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-06-15 · updated 2026-06-16
• Weakness: CWE-189

Description

Multiple integer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XQueryFont, (2) _XF86BigfontQueryFont, (3) XListFontsWithInfo, (4) XGetMotionEvents, (5) XListHosts, (6) XGetModifierMapping, (7) XGetPointerMapping, (8) XGetKeyboardMapping, (9) XGetWindowProperty, (10) XGetImage, (11) LoadColornameDB, (12) XrmGetFileDatabase, (13) _XimParseStringFile, or (14) TransFileName functions.

Affected products

• Canonical Ubuntu Linux: 10.04, 12.04, 12.10, 13.04
• X Libx11: through 1.5.99.901; 1.5.0

References

• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106781.html
• http://www.debian.org/security/2013/dsa-2693
• http://www.openwall.com/lists/oss-security/2013/05/23/3
• http://www.securityfocus.com/bid/60120
• http://www.ubuntu.com/usn/USN-1854-1
• http://www.x.org/wiki/Development/Security/Advisory-2013-05-23
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106781.html
• http://www.debian.org/security/2013/dsa-2693
• http://www.openwall.com/lists/oss-security/2013/05/23/3
• http://www.securityfocus.com/bid/60120
• http://www.ubuntu.com/usn/USN-1854-1
• http://www.x.org/wiki/Development/Security/Advisory-2013-05-23

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